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WorksheetsThe Periodic Table of Elements
Total questions: 15
Worksheet time: 9mins
Mendeleev arranged the elements by their ________________
proton number
density
melting point
atomic mass
Elements in the same group or family have the same number of
neutrons
valence electrons
electrons
energy levels
What are the elements in group 18 (the far right) of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements found along the "staircase" called? They have properties of both metals and non-metals.
Metalloids
Non-metals
Transition metals
Metals
Diagram above shows the electron arrangements of atom D and atom E. Which of the following statements is true about elements D and E?
The boiling point of Element E is lower than Element D
Both the elements, D and E, can conduct electricity
Both the elements, D and E, are very soluble in water
Both the elements, D and E, cannot combine with other elements to form compounds
Which of the following elements is most likely to have similar properties to those of sodium (Na)?
Magnesium (Mg)
Sulfur (S)
Francium (Fr)
Titanium (Ti)
Which pair of properties describes the elements in Group 1?
They are chemically stable
They have 8 valence electrons
They are the most reactive metals
They are the most reactive non metals
Reactivity of halogen decreases going down the group because
The 8th electron difficult to attract by nucleus
Atomic size decreases down the group
Electrons are closer to the nucleus
Screening effect decreases
As you move down the group, halogens' reactivity...
increases
decreases
doesn't change
shows no trend.
As you go down the group, how does the boiling point of the halogen elements change?
Increases
Decreases
They're all about the same
Which statement is correct about the alkali metals when going down Group 1 in the Periodic Table?
The reactivity decreases
Electropositivity decreases
Strength of nucleus to attract an electron into the valence shell increases
The single valence electron becomes more weakly pulled by the nucleus
Elements G, L and J are located in Group 17 of the Periodic Table. Element J is more electronegative than element G. The reaction of red-hot iron wool with gas L is more vigorous than the reaction of red-hot iron wool with gas J. The reactivity of these three elements in ascending order is
G, J, L
L, J, G
L, G, J
J, G, L
Atom T has a proton number of 11 and a nucleon number of 23. Which of the following is true about element T?
It does not conduct electricity
It forms an oxide with the formula TO
It is a hard black solid
It reacts with water to form an alkaline solution
The following shows some information about element M.
- Element M forms ions with the formula M+
- An M+ ion has an electron arrangement of 2.8
Which of the following properties of element M is true?
reacts with red-hot iron to form a brown solid
forms an acidic oxide
displaces hydrogen gas from cold water
cannot conduct electricity
